20108997

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{347}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 29966976

約数和(自身を除く): 9857979

約数列:

[1, 3, 9, 47, 137, 141, 347, 411, 423, 1041, 1233, 3123, 6439, 16309, 19317, 47539, 48927, 57951, 142617, 146781, 427851, 2234333, 6702999, 20108997]

約数ペア:

[(1, 20108997), (3, 6702999), (9, 2234333), (47, 427851), (137, 146781), (141, 142617), (347, 57951), (411, 48927), (423, 47539), (1041, 19317), (1233, 16309), (3123, 6439)]